/* NetKey Website - NetKey Brand Styling */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Primary Colors - NetKey Brand */
    --netkey-dark-blue: #070452;
    --netkey-mid-blue: #1C16C5;
    --netkey-blue: #00C8FF;
    --netkey-light-blue: #B4FFFF;
    --netkey-superlight-blue: #E8FDFF;
    
    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: var(--netkey-blue);
    --color-purple: #8B5CF6;
    --color-pink: #EC4899;
    --color-orange: #F97316;
    --color-cyan: #06B6D4;
    
    /* Backgrounds */
    --bg-body: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-dark: var(--netkey-dark-blue);
    --bg-code: #1E293B;
    
    /* Text Colors */
    --text-primary: var(--netkey-dark-blue);
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --text-light: #FFFFFF;
    
    /* Borders */
    --border-color: #E2E8F0;
    --border-light: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(7, 4, 82, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(7, 4, 82, 0.1), 0 2px 4px -1px rgba(7, 4, 82, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(7, 4, 82, 0.1), 0 4px 6px -2px rgba(7, 4, 82, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(7, 4, 82, 0.1), 0 10px 10px -5px rgba(7, 4, 82, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(7, 4, 82, 0.25);
    --shadow-glow: 0 0 40px rgba(0, 200, 255, 0.2);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --nav-height: 64px;
    --container-max: 1280px;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--netkey-mid-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--netkey-blue);
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--netkey-dark-blue);
    text-decoration: none;
}

.nav-brand:hover {
    color: var(--netkey-dark-blue);
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.brand-logo {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--netkey-superlight-blue);
    color: var(--netkey-dark-blue);
}

.nav-link.active {
    background: var(--netkey-superlight-blue);
    color: var(--netkey-mid-blue);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-toggle {
    display: none;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    border: none;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-xl {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
    border-radius: var(--radius-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-dark-blue));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--netkey-mid-blue);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--netkey-mid-blue);
    background: var(--netkey-superlight-blue);
}

.btn-outline {
    background: transparent;
    color: var(--netkey-mid-blue);
    border: 2px solid var(--netkey-mid-blue);
}

.btn-outline:hover {
    background: var(--netkey-superlight-blue);
}

.btn-outline-light {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding: calc(var(--nav-height) + var(--spacing-4xl)) 0 var(--spacing-4xl);
    background: linear-gradient(180deg, var(--netkey-superlight-blue) 0%, var(--bg-body) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 200, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(28, 22, 197, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--netkey-mid-blue);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.hero-badge i {
    color: var(--color-success);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--netkey-dark-blue) 0%, var(--netkey-mid-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.375rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto var(--spacing-2xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-4xl);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-color);
}

.hero-dashboard {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-color);
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-body);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.dashboard-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dashboard-dot.red { background: #EF4444; }
.dashboard-dot.yellow { background: #F59E0B; }
.dashboard-dot.green { background: #10B981; }

.dashboard-url {
    flex: 1;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.dashboard-content {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-md);
    min-height: 300px;
}

.dashboard-sidebar {
    background: var(--netkey-dark-blue);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.sidebar-logo i {
    font-size: 1.25rem;
    color: var(--netkey-blue);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.sidebar-item.active {
    background: rgba(0, 200, 255, 0.15);
    color: var(--netkey-blue);
}

.dashboard-main {
    background: var(--bg-body);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.stat-card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--netkey-dark-blue);
}

.stat-card-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dashboard-chart {
    background: white;
    height: 120px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, var(--netkey-mid-blue), var(--netkey-blue));
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    min-height: 20px;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--spacing-4xl) 0;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--netkey-mid-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-label i {
    font-size: 1rem;
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.125rem;
    margin: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--bg-body);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.feature-icon.bg-blue { background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-blue)); }
.feature-icon.bg-purple { background: linear-gradient(135deg, #7C3AED, #A78BFA); }
.feature-icon.bg-green { background: linear-gradient(135deg, #059669, #34D399); }
.feature-icon.bg-orange { background: linear-gradient(135deg, #EA580C, #FB923C); }
.feature-icon.bg-pink { background: linear-gradient(135deg, #DB2777, #F472B6); }
.feature-icon.bg-cyan { background: linear-gradient(135deg, #0891B2, #22D3EE); }

.feature-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-content p {
    font-size: 0.9375rem;
    margin: 0;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-body);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.benefit-card {
    text-align: center;
    padding: var(--spacing-2xl);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.benefit-card:hover {
    border-color: var(--netkey-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.benefit-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--netkey-superlight-blue);
    border-radius: var(--radius-xl);
    font-size: 2rem;
    color: var(--netkey-mid-blue);
}

.benefit-card h3 {
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    margin: 0;
}

/* ============================================
   INDUSTRIES SECTION
   ============================================ */
.industries {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(180deg, var(--bg-body) 0%, var(--netkey-superlight-blue) 50%, var(--bg-body) 100%);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.industry-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--netkey-mid-blue), var(--netkey-blue));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.industry-card:hover {
    border-color: var(--netkey-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.industry-card:hover::before {
    opacity: 1;
}

.industry-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--netkey-superlight-blue) 0%, var(--netkey-light-blue) 100%);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    color: var(--netkey-mid-blue);
}

.industry-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.industry-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.industry-card > p:not(.industry-subtitle) {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.industry-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.industry-benefits li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-primary);
    padding: var(--spacing-xs) 0;
}

.industry-benefits li i {
    color: var(--color-success);
    font-size: 0.875rem;
    flex-shrink: 0;
}

/* Security Callout */
.security-callout {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    background: linear-gradient(135deg, var(--netkey-dark-blue) 0%, var(--netkey-mid-blue) 100%);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    color: white;
    position: relative;
    overflow: hidden;
}

.security-callout::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 200, 255, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.security-callout-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--netkey-blue);
    flex-shrink: 0;
}

.security-callout-content {
    position: relative;
}

.security-callout-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.security-callout-content p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    line-height: 1.7;
}

.security-callout-content strong {
    color: var(--netkey-blue);
    font-weight: 600;
}

/* Any Industry Note */
.any-industry-note {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--netkey-super-light-blue);
    border: 1px solid var(--netkey-light-blue);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-2xl);
}

.any-industry-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--netkey-mid-blue) 0%, var(--netkey-dark-blue) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    flex-shrink: 0;
}

.any-industry-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--netkey-dark-blue);
    margin-bottom: var(--spacing-xs);
}

.any-industry-content p {
    color: var(--neutral-600);
    margin: 0;
    line-height: 1.6;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    padding: var(--spacing-4xl) 0;
    background: var(--netkey-dark-blue);
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 200, 255, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 40%);
    pointer-events: none;
}

.cta .container {
    position: relative;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--netkey-dark-blue);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    height: 36px;
    width: auto;
    max-width: 130px;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
    object-fit: contain;
}

.footer-brand .brand-icon {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-brand > span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

.footer-links h5 {
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    display: block;
    padding: var(--spacing-xs) 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: rgba(0, 200, 255, 0.2);
    color: var(--netkey-blue);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-color);
        z-index: 1000;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links .nav-link {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
        text-align: center;
    }
    
    .nav-links .nav-link-cta {
        display: none;
    }
    
    .nav-links.active .nav-link-cta {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-sm);
        background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-dark-blue));
        color: white;
        margin-top: var(--spacing-md);
    }
    
    .nav-links.active .nav-link-cta:hover {
        color: white;
    }
    
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: none;
    }
}

@media (max-width: 900px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .security-callout {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
        --spacing-4xl: 3rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

/* ============================================
   SIGNUP PAGE STYLES
   ============================================ */
.signup-section {
    padding: calc(var(--nav-height) + var(--spacing-3xl)) 0 var(--spacing-4xl);
    min-height: 100vh;
    background: linear-gradient(180deg, var(--netkey-superlight-blue) 0%, var(--bg-body) 100%);
}

.signup-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.signup-info {
    padding-top: var(--spacing-xl);
}

.signup-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--netkey-dark-blue), var(--netkey-mid-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.signup-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.beta-notice {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.beta-notice-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--color-warning);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.beta-notice-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.beta-notice-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.signup-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.signup-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.signup-feature i {
    color: var(--color-success);
    font-size: 1.125rem;
}

.signup-form-container {
    position: relative;
}

.signup-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
}

.signup-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.signup-card .text-muted {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.signup-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-card);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--netkey-mid-blue);
    box-shadow: 0 0 0 3px rgba(28, 22, 197, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--netkey-mid-blue);
}

.checkbox-label a {
    color: var(--netkey-mid-blue);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.form-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.form-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.form-success h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-success p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.form-success p:last-child {
    margin-bottom: 0;
}

.signup-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.signup-footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.signup-footer a {
    color: var(--netkey-mid-blue);
    font-weight: 500;
    text-decoration: none;
}

.signup-footer a:hover {
    text-decoration: underline;
}

.w-100 {
    width: 100%;
}

@media (max-width: 900px) {
    .signup-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .signup-info {
        padding-top: 0;
        text-align: center;
    }
    
    .signup-info h1 {
        font-size: 2rem;
    }
    
    .signup-features {
        align-items: center;
    }
    
    .beta-notice {
        flex-direction: column;
        text-align: center;
    }
    
    .beta-notice-icon {
        align-self: center;
    }
}

/* ============================================
   ISOLATION SECTION
   ============================================ */
.isolation {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(180deg, var(--bg-body) 0%, #F1F5F9 100%);
}

.isolation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.isolation-content .section-label {
    justify-content: flex-start;
    margin-bottom: var(--spacing-md);
}

.isolation-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.isolation-lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
}

.isolation-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.isolation-feature {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.isolation-feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-blue));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.isolation-feature-icon i {
    font-size: 1.25rem;
    color: white;
}

.isolation-feature-text strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.isolation-feature-text p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Isolation Visual / Diagram */
.isolation-visual {
    display: flex;
    justify-content: center;
}

.isolation-diagram {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 400px;
}

.diagram-ssid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--netkey-dark-blue), var(--netkey-mid-blue));
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.diagram-ssid i {
    font-size: 1.25rem;
}

.diagram-users {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.diagram-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-body);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-avatar i {
    color: white;
    font-size: 1.25rem;
}

.user-devices {
    display: flex;
    gap: var(--spacing-xs);
    flex: 1;
}

.user-device {
    width: 32px;
    height: 32px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-device i {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.user-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.diagram-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) 0;
}

.diagram-separator i {
    font-size: 1rem;
    color: var(--color-success);
}

@media (max-width: 900px) {
    .isolation-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .isolation-content {
        text-align: center;
    }
    
    .isolation-content .section-label {
        justify-content: center;
    }
    
    .isolation-content h2 {
        font-size: 2rem;
    }
    
    .isolation-features {
        align-items: center;
    }
    
    .isolation-feature {
        max-width: 400px;
        text-align: left;
    }
}